When build docker image, i can put a
CMD to run a script or command in the container, but it is hard coded in the image and not flexible, I test with
ONBUILD, still not flexible enough.
Can I have a feature to run “user data” as in aws ec2 instance when start a new container?
For example, I built an image, when I need start a new container with
yum update -y, what can i do?